160
FNCA52 TJSJ 011930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST TUE SEP 1 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-020800-
SOUTHEAST COASTAL PLAINS-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 30 10
TEMP (24H TREND) 75 (-2) 92 (+2) 75 92
RH % (24H TREND) 92 (+4) 57 (-5) 93 55
WIND 20FT/EARLY(MPH) E 12 E 14 E 11 E 13
WIND 20FT/LATE(MPH) NE 9 SE 16 NE 8 SE 14
MIXING HGT(FT-AGL/MSL) 5110 4570
TRANSPORT WND (MPH) E 13 E 12
VENT RATE (KT-FT) 56210 45700
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-020800-
SOUTHERN HILLS-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 10 20
TEMP (24H TREND) 71 (-3) 90 (+4) 71 90
RH % (24H TREND) 98 (+5) 60 (-5) 98 59
WIND 20FT/EARLY(MPH) E 11 E 11 E 9 E 10
WIND 20FT/LATE(MPH) NE 8 E 12 NE 9 E 11
MIXING HGT(FT-AGL/MSL) 5560 5370
TRANSPORT WND (MPH) E 12 E 10
VENT RATE (KT-FT) 55600 48330
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-020800-
NORTH COASTAL PLAINS-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS TSTMS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 50 10 20
TEMP (24H TREND) 74 (-3) 91 (+1) 74 91
RH % (24H TREND) 99 (+6) 61 (-6) 98 60
WIND 20FT/EARLY(MPH) E 11 E 11 E 12 E 11
WIND 20FT/LATE(MPH) SE 8 E 12 E 11 E 14
MIXING HGT(FT-AGL/MSL) 4700 4510
TRANSPORT WND (MPH) E 12 E 10
VENT RATE (KT-FT) 47000 40590
DISPERSION 5 5
DSI 4 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-020800-
NORTHERN HILLS-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR PCLDY CLEAR MCLEAR
PRECIP TYPE SHOWERS TSTMS NONE TSTMS
CHANCE PRECIP (%) 10 70 0 30
TEMP (24H TREND) 72 (-2) 90 (+2) 72 90
RH % (24H TREND) 100 (+5) 65 (-2) 100 64
WIND 20FT/EARLY(MPH) E 10 E 9 E 10 E 9
WIND 20FT/LATE(MPH) E 5 E 11 SE 9 E 12
MIXING HGT(FT-AGL/MSL) 5480 5350
TRANSPORT WND (MPH) E 9 E 8
VENT RATE (KT-FT) 43840 37450
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-020800-
WEST COAST-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR PCLDY CLEAR PCLDY
PRECIP TYPE NONE TSTMS NONE TSTMS
CHANCE PRECIP (%) 0 60 0 40
TEMP (24H TREND) 72 (-3) 93 (+2) 72 93
RH % (24H TREND) 99 (+4) 61 (-4) 100 61
WIND 20FT/EARLY(MPH) E 8 E 10 E 10 E 9
WIND 20FT/LATE(MPH) E 8 E 11 E 10 E 11
MIXING HGT(FT-AGL/MSL) 4910 4720
TRANSPORT WND (MPH) E 7 E 7
VENT RATE (KT-FT) 29460 28320
DISPERSION 5 5
DSI 2 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-020800-
EASTERN INTERIOR-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 30 30 30
TEMP (24H TREND) 73 (-3) 91 (+3) 73 91
RH % (24H TREND) 98 (+5) 59 (-5) 99 57
WIND 20FT/EARLY(MPH) E 11 E 10 E 9 E 11
WIND 20FT/LATE(MPH) E 9 E 11 E 9 E 11
MIXING HGT(FT-AGL/MSL) 6000 5250
TRANSPORT WND (MPH) E 12 E 10
VENT RATE (KT-FT) 60000 47250
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-020800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 30 40 30
TEMP (24H TREND) 71 (-2) 86 (+3) 71 87
RH % (24H TREND) 99 (+3) 64 (-7) 100 62
WIND 20FT/EARLY(MPH) E 9 E 10 E 8 E 10
WIND 20FT/LATE(MPH) E 6 E 10 E 6 E 10
MIXING HGT(FT-AGL/MSL) 4880 4160
TRANSPORT WND (MPH) E 12 E 10
VENT RATE (KT-FT) 48800 37440
DISPERSION 5 5
DSI 3 6 4 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-020800-
CENTRAL MOUNTAIN RANGE-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR PCLDY CLEAR PCLDY
PRECIP TYPE SHOWERS TSTMS NONE TSTMS
CHANCE PRECIP (%) 0 70 0 50
TEMP (24H TREND) 68 (-4) 87 (+4) 68 88
RH % (24H TREND) 100 (+4) 67 (-4) 100 65
WIND 20FT/EARLY(MPH) E 5 E 6 E 8 E 6
WIND 20FT/LATE(MPH) LGT/VAR E 8 E 8 E 8
MIXING HGT(FT-AGL/MSL) 6260 5940
TRANSPORT WND (MPH) E 8 E 8
VENT RATE (KT-FT) 43820 41580
DISPERSION 5 5
DSI 1 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-020800-
CAYEY MOUNTAIN RANGE-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 40 10
TEMP (24H TREND) 70 (-4) 87 (+3) 71 87
RH % (24H TREND) 99 (+2) 64 (-4) 100 61
WIND 20FT/EARLY(MPH) E 10 E 10 E 8 E 9
WIND 20FT/LATE(MPH) E 6 E 10 NE 6 E 10
MIXING HGT(FT-AGL/MSL) 5590 4770
TRANSPORT WND (MPH) E 13 E 10
VENT RATE (KT-FT) 61490 42930
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-020800-
VIEQUES-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 30 40 30
TEMP (24H TREND) 80 (-1) 91 (+1) 80 91
RH % (24H TREND) 83 (+3) 55 (-4) 84 55
WIND 20FT/EARLY(MPH) E 13 E 11 E 11 E 12
WIND 20FT/LATE(MPH) E 12 E 11 E 12 E 11
MIXING HGT(FT-AGL/MSL) 3290 3370
TRANSPORT WND (MPH) E 14 E 13
VENT RATE (KT-FT) 39480 37070
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-020800-
CULEBRA-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 40 40 30
TEMP (24H TREND) 79 (-2) 91 (+2) 79 91
RH % (24H TREND) 85 (+2) 59 (-7) 86 57
WIND 20FT/EARLY(MPH) E 13 E 11 E 11 E 12
WIND 20FT/LATE(MPH) E 12 E 10 E 12 E 11
MIXING HGT(FT-AGL/MSL) 3260 3370
TRANSPORT WND (MPH) E 14 E 13
VENT RATE (KT-FT) 39120 37070
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-020800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 0 10
TEMP (24H TREND) 75 (-2) 93 (+2) 75 93
RH % (24H TREND) 93 (+6) 56 (-5) 95 56
WIND 20FT/EARLY(MPH) E 12 E 13 E 12 E 12
WIND 20FT/LATE(MPH) E 11 SE 16 E 10 SE 16
MIXING HGT(FT-AGL/MSL) 5170 4880
TRANSPORT WND (MPH) E 13 E 12
VENT RATE (KT-FT) 56870 48800
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-020800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER PCLDY PCLDY MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 30 30 30
TEMP (24H TREND) 79 (-2) 89 (+2) 79 89
RH % (24H TREND) 86 (+3) 60 (-6) 86 59
WIND 20FT/EARLY(MPH) E 13 E 11 E 12 E 13
WIND 20FT/LATE(MPH) E 12 E 10 E 12 E 11
MIXING HGT(FT-AGL/MSL) 3170 3400
TRANSPORT WND (MPH) E 14 E 13
VENT RATE (KT-FT) 38040 37400
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-020800-
ST CROIX-
330 PM AST TUE SEP 1 2026
TONIGHT WED WED NIGHT THU
CLOUD COVER MCLDY MCLEAR PCLDY MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 50 20 40 20
TEMP (24H TREND) 79 (-2) 90 (+2) 79 90
RH % (24H TREND) 88 (+3) 61 (-6) 87 61
WIND 20FT/EARLY(MPH) E 13 E 11 E 11 E 12
WIND 20FT/LATE(MPH) E 11 E 11 E 12 E 11
MIXING HGT(FT-AGL/MSL) 4700 4320
TRANSPORT WND (MPH) E 13 E 13
VENT RATE (KT-FT) 51700 47520
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
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